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Chiaki Kojima
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical pickup device with a plurality of laser couplers
Patent number
7,113,471
Issue date
Sep 26, 2006
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device with a plurality of laser couplers
Patent number
7,038,994
Issue date
May 2, 2006
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device with a plurality of laser couplers
Patent number
6,504,812
Issue date
Jan 7, 2003
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device with a plurality of laser couplers
Patent number
6,134,208
Issue date
Oct 17, 2000
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device with a plurality of laser couplers
Patent number
6,091,689
Issue date
Jul 18, 2000
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical device comprising a photodetector for detecting light scatt...
Patent number
5,900,619
Issue date
May 4, 1999
Sony Corporation
Kazuo Honda
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical pickup device with biaxial drive for objective lens
Patent number
5,867,469
Issue date
Feb 2, 1999
Sony Corporation
Kiyoshi Tanaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor optical device for code reader
Patent number
5,852,287
Issue date
Dec 22, 1998
Sony Corporation
Tadashi Taniguchi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Opto-magnetic recording polarization optical apparatus having a lig...
Patent number
5,396,061
Issue date
Mar 7, 1995
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Opto-magnetic recording polarization optical apparatus including a...
Patent number
5,350,917
Issue date
Sep 27, 1994
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Hologram recording medium
Patent number
4,842,968
Issue date
Jun 27, 1989
Sony Corporation
Chiaki Kojima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of producing inline hologram lens
Patent number
4,603,938
Issue date
Aug 5, 1986
Sony Corporation
Chiaki Kojima
G02 - OPTICS
Information
Patent Grant
Optical reproducing head
Patent number
4,458,980
Issue date
Jul 10, 1984
Sony Corporation
Hiroshi Ohki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for manufacturing in-line hologram lens
Patent number
4,393,126
Issue date
Jul 12, 1983
Sony Corporation
Chiaki Kojima
G02 - OPTICS
Information
Patent Grant
Method of producing an inline hologram lens
Patent number
4,312,559
Issue date
Jan 26, 1982
Sony Corporation
Chiaki Kojima
G02 - OPTICS
Information
Patent Grant
Apparatus for optically reading information from a record carrier
Patent number
4,253,723
Issue date
Mar 3, 1981
Sony Corporation
Chiaki Kojima
G02 - OPTICS
Information
Patent Grant
Method and apparatus for optically reproducing a rotatable record w...
Patent number
4,157,568
Issue date
Jun 5, 1979
Sony Corporation
Hiroshi Ohki
G11 - INFORMATION STORAGE
Information
Patent Grant
Record disk and method for producing the same with constant width g...
Patent number
4,152,726
Issue date
May 1, 1979
Sony Corporation
Chiaki Kojima
G11 - INFORMATION STORAGE
Information
Patent Grant
Linear method of optically recording a video or other signal
Patent number
4,150,398
Issue date
Apr 17, 1979
Sony Corporation
Chiaki Kojima
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotatable record carrier and method and apparatus for producing same
Patent number
4,142,210
Issue date
Feb 27, 1979
Sony Corporation
Takashi Otobe
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for reproducing signals from a rotating record...
Patent number
4,107,729
Issue date
Aug 15, 1978
Sony Corporation
Takashi Otobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Optical pickup device with a plurality of laser couplers
Publication number
20050163017
Publication date
Jul 28, 2005
Tadashi Taniguchi
G11 - INFORMATION STORAGE
Information
Patent Application
Optical pickup device with a plurality of laser couplers
Publication number
20020060976
Publication date
May 23, 2002
Sony Corporation
Tadashi Taniguchi
G11 - INFORMATION STORAGE